Improvement in bench-vises



sent detail views in partial section.

UNITED u STATES EMMETT H. BROWER, OF CARSON CITY, MICHIGAN.

IMPROVEMNT IN 4BENCH-VISES.

Specification forming part of Letters Patent No. 192,147, dated June 19,1877 January 3, 1877.

To aLL'w/wm 'it may concern Beit known that IEMM:ETT H. BEOWEB, ofCarson City,in the county of Montcalm andV State of Michigan, haveinvented certain new and useful Improvements in Bench-Vises; and I dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art towhich it appertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specifica tion:

Figure l represents a perspective view of my improved invention. Figs. 2and 3 repre- Similar letters of reference occurring on the severalfigures indicate like parts.

My invention relates to improvements in carpenters bench-vises; and itconsists `of a pivoted foot-lever, which, acting in connection with aspring-catch and ratchet, serves to raise or lower the vise above thelevel of the bench for the different purposes of carpentry, all as willbe hereinafter more fully described, and pointed out in the claims.

Referring to the drawings, A B represent the two jaws of an ordinarycarpenters vise, the `rear jaw B of which is provided with tongues d oneach side, which are adapted to slide in the grooves e made in the postsD D', said posts being mortised to a bed-piece, E, and to the bench C,as shown in Fig. 1. For the purpose of Vkeeping the jaws A B in a lineparallel with each other, I secure one end of a ratchet-bar, K, to thelower part of the jaw A, while the other end passes through a slot inthe lower part of the jaw B, and directly above the said slot is pivoteda foot-lever, a, provided with a lug, b, which is adapted to catch inthe saw-tooth projections' of the bar K, so as to keep the foot of thejaw Ain a true vertical line with the top of the same, as shown in Figs.1 and 3. To the rear of theV post Dl is arranged a smaller post, L,mortised to the bed-piece E, in which is pivoted a application filedfoot-lever, G, one end of which is curved, so as to form a convenientseat for the foot, while the other end is pivoted to the rear lower partof the jaw B, for raising or lowering the jaws A B above or below thelevel of the bench C, as may be required for the different operations ofcarpentry. A spring, H, provided at its lower end with a cam-1ever, 1,and dog J, is

secured to the side of the post D', the dog J operating through a slotin the said post, and engaging with a ratchet formed on one of thetongues d of the jaw B, to sustain the vise when in an elevatedposition.

In the operation of my invention the jaws A B are elevated by rstpressing upon the earn-lever I, which operation draws back the dog Jfrom the ratchet on the jaw B, when, by next pressing upon thefoot-lever G, the jaws of the vise may be raised to the desired height,and the cam-lever I released, thereby springing the dog J into thesaw-tooth projections and holding the vise in position. In lowering thesaid jaws it is necessary only to depress the cam-lever I, whichoperation with draws the dog J from the ratchet, thereby allowing thevise to fall to the desired-position.

Having thus described my invention, what I claim as new and useful is l.The combination of the foot-lever G, spring H, dog J, and cam-lever Iwith a carpenters vise, the several parts being constructed and arrangedto `operate substantially as and for the purpose specified.

2. A carpenters vise provided with the ratchet-bar K, dog b, and levera, substantially as described, and for the purpose set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

EMMETTE. BROWEE.

PATENT QEEICEo l

